Looking for classes around 4 or 4:30 pm?

Hey all, I've already checked the Y and The Edge but I'm desperately looking for some sort of dance, yoga, cardio, or barre or strength classes around 4 pm in New Castle County. I don't want to hang out after work for 2 hours or more waiting for the whole world's 6 pm classes to start.

Any help at all would be greatly appreciated.